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feat: add solutions to lc project (doocs#2212)
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#include <iostream> | ||
#include <vector> | ||
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using namespace std; | ||
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void bubbleSort(vector<int>& arr) { | ||
int n = arr.size(); | ||
for (int i = 0; i < n - 1; ++i) { | ||
bool change = false; | ||
for (int j = 0; j < n - i - 1; ++j) { | ||
if (arr[j] > arr[j + 1]) { | ||
swap(arr[j], arr[j + 1]); | ||
change = true; | ||
} | ||
} | ||
if (!change) break; | ||
} | ||
} | ||
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int main() { | ||
vector<int> arr = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0}; | ||
bubbleSort(arr); | ||
for (int v : arr) cout << v << " "; | ||
cout << endl; | ||
} |
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using static System.Console; | ||
namespace Pro; | ||
public class Program | ||
{ | ||
public static void Main() | ||
{ | ||
int[] test = new int[] { 56, 876, 34, 23, 45, 501, 2, 3, 4, 6, 5, 7, 8, 9, 11, 10, 12, 23, 34 }; | ||
BubbleSortNums(test); | ||
foreach (var item in test) | ||
{ | ||
WriteLine(item); | ||
} | ||
ReadLine(); | ||
} | ||
public static void BubbleSortNums(int[] nums) | ||
{ | ||
int numchange = 0; | ||
for (int initial = 0; initial < nums.Length - numchange; initial++) | ||
{ | ||
WriteLine($"{initial} start "); | ||
// 记录此值 用于迭代开始位置 | ||
bool changelog = false; | ||
for (int second_sortnum = initial; second_sortnum < nums.Length - 1; second_sortnum++) | ||
{ | ||
if (nums[second_sortnum] > nums[second_sortnum + 1]) | ||
{ | ||
swap(ref nums[second_sortnum], ref nums[second_sortnum + 1]); | ||
if (!changelog) | ||
{ | ||
// 记录转换的位置,让initial开始位置从转换位置前开始 | ||
initial = ((second_sortnum - 2) > 0) ? (second_sortnum - 2) : -1; | ||
numchange += 1; | ||
} | ||
changelog = true; | ||
} | ||
} | ||
} | ||
} | ||
private static void swap(ref int compare_left, ref int compare_right) | ||
{ | ||
int temp = compare_left; | ||
compare_left = compare_right; | ||
compare_right = temp; | ||
} | ||
} |
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package main | ||
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import "fmt" | ||
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func bubbleSort(nums []int) { | ||
hasChange := true | ||
for i, n := 0, len(nums); i < n-1 && hasChange; i++ { | ||
hasChange = false | ||
for j := 0; j < n-i-1; j++ { | ||
if nums[j] > nums[j+1] { | ||
nums[j], nums[j+1] = nums[j+1], nums[j] | ||
hasChange = true | ||
} | ||
} | ||
} | ||
} | ||
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func main() { | ||
nums := []int{1, 2, 7, 9, 5, 8} | ||
bubbleSort(nums) | ||
fmt.Println(nums) | ||
} |
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import java.util.Arrays; | ||
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public class BubbleSort { | ||
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private static void bubbleSort(int[] nums) { | ||
boolean hasChange = true; | ||
for (int i = 0, n = nums.length; i < n - 1 && hasChange; ++i) { | ||
hasChange = false; | ||
for (int j = 0; j < n - i - 1; ++j) { | ||
if (nums[j] > nums[j + 1]) { | ||
swap(nums, j, j + 1); | ||
hasChange = true; | ||
} | ||
} | ||
} | ||
} | ||
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private static void swap(int[] nums, int i, int j) { | ||
int t = nums[i]; | ||
nums[i] = nums[j]; | ||
nums[j] = t; | ||
} | ||
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public static void main(String[] args) { | ||
int[] nums = {1, 2, 7, 9, 5, 8}; | ||
bubbleSort(nums); | ||
System.out.println(Arrays.toString(nums)); | ||
} | ||
} |
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function bubbleSort(inputArr) { | ||
for (let i = inputArr.length - 1; i > 0; i--) { | ||
let hasChange = false; | ||
for (let j = 0; j < i; j++) { | ||
if (inputArr[j] > inputArr[j + 1]) { | ||
const temp = inputArr[j]; | ||
inputArr[j] = inputArr[j + 1]; | ||
inputArr[j + 1] = temp; | ||
hasChange = true; | ||
} | ||
} | ||
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if (!hasChange) { | ||
break; | ||
} | ||
} | ||
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return inputArr; | ||
} | ||
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const arr = [6, 3, 2, 1, 5]; | ||
console.log(bubbleSort(arr)); |
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def bubbleSort(arr): | ||
n = len(arr) | ||
# Iterate over all array elements | ||
for i in range(n): | ||
# Last i elements are already in place | ||
for j in range(n - i - 1): | ||
if arr[j] > arr[j + 1]: | ||
arr[j], arr[j + 1] = arr[j + 1], arr[j] | ||
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# 改进版本 | ||
def bubbleSort(arr): | ||
n = len(arr) | ||
for i in range(n - 1): | ||
has_change = False | ||
for j in range(n - i - 1): | ||
if arr[j] > arr[j + 1]: | ||
arr[j], arr[j + 1] = arr[j + 1], arr[j] | ||
has_change = True | ||
if not has_change: | ||
break | ||
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arr = [64, 34, 25, 12, 22, 11, 90] | ||
bubbleSort(arr) | ||
print(arr) |
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fn bubble_sort(nums: &mut Vec<i32>) { | ||
let n = nums.len(); | ||
for i in 0..n - 1 { | ||
for j in i..n { | ||
if nums[i] > nums[j] { | ||
let temp = nums[i]; | ||
nums[i] = nums[j]; | ||
nums[j] = temp; | ||
} | ||
} | ||
} | ||
} | ||
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fn main() { | ||
let mut nums = vec![1, 2, 7, 9, 5, 8]; | ||
bubble_sort(&mut nums); | ||
println!("{:?}", nums); | ||
} |
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package main | ||
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import "fmt" | ||
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const N = 100010 | ||
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var ( | ||
size int | ||
h []int | ||
) | ||
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func up(u int) { | ||
for u/2 != 0 && h[u/2] > h[u] { //父节点比当前结点小 | ||
h[u/2], h[u] = h[u], h[u/2] //交换 | ||
u /= 2 | ||
} | ||
} | ||
func down(u int) { | ||
t := u //t 最小值 | ||
if u*2 <= size && h[2*u] < h[t] { //左孩子存在且小于t | ||
t = u * 2 | ||
} | ||
if u*2+1 <= size && h[2*u+1] < h[t] { //右孩子存在且小于t | ||
t = 2*u + 1 | ||
} | ||
if u != t { | ||
h[u], h[t] = h[t], h[u] | ||
down(t) //递归处理 | ||
} | ||
} | ||
func main() { | ||
var n, m int | ||
h = make([]int, N) | ||
fmt.Scanf("%d%d", &n, &m) | ||
//创建一维数组1 | ||
for i := 1; i <= n; i++ { | ||
fmt.Scanf("%d", &h[i]) | ||
} | ||
size = n | ||
// 一维数组变为小根堆 | ||
for i := n / 2; i != 0; i-- { | ||
down(i) | ||
} | ||
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for ; m != 0; m-- { | ||
fmt.Printf("%d ", h[1]) | ||
h[1] = h[size] | ||
size-- | ||
down(1) | ||
} | ||
} |
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import java.util.Scanner; | ||
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public class Main { | ||
private static int[] h = new int[100010]; | ||
private static int size; | ||
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public static void main(String[] args) { | ||
Scanner sc = new Scanner(System.in); | ||
int n = sc.nextInt(), m = sc.nextInt(); | ||
for (int i = 1; i <= n; ++i) { | ||
h[i] = sc.nextInt(); | ||
} | ||
size = n; | ||
for (int i = n / 2; i > 0; --i) { | ||
down(i); | ||
} | ||
while (m-- > 0) { | ||
System.out.print(h[1] + " "); | ||
h[1] = h[size--]; | ||
down(1); | ||
} | ||
} | ||
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public static void down(int u) { | ||
int t = u; | ||
if (u * 2 <= size && h[u * 2] < h[t]) { | ||
t = u * 2; | ||
} | ||
if (u * 2 + 1 <= size && h[u * 2 + 1] < h[t]) { | ||
t = u * 2 + 1; | ||
} | ||
if (t != u) { | ||
swap(t, u); | ||
down(t); | ||
} | ||
} | ||
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public static void up(int u) { | ||
while (u / 2 > 0 && h[u / 2] > h[u]) { | ||
swap(u / 2, u); | ||
u /= 2; | ||
} | ||
} | ||
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public static void swap(int i, int j) { | ||
int t = h[i]; | ||
h[i] = h[j]; | ||
h[j] = t; | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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n, m = list(map(int, input().split(" "))) | ||
h = [0] + list(map(int, input().split(" "))) | ||
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size = n | ||
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def down(u): | ||
t = u | ||
if u * 2 <= size and h[u * 2] < h[t]: | ||
t = u * 2 | ||
if u * 2 + 1 <= size and h[u * 2 + 1] < h[t]: | ||
t = u * 2 + 1 | ||
if t != u: | ||
h[t], h[u] = h[u], h[t] | ||
down(t) | ||
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def up(u): | ||
while u // 2 > 0 and h[u // 2] > h[u]: | ||
h[u // 2], h[u] = h[u], h[u // 2] | ||
u //= 2 | ||
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for i in range(n // 2, 0, -1): | ||
down(i) | ||
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res = [] | ||
for i in range(m): | ||
res.append(h[1]) | ||
h[1] = h[size] | ||
size -= 1 | ||
down(1) | ||
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print(' '.join(list(map(str, res)))) |
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